K12 Chem 4.01 Chemical Thermodynamics – Flashcards
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Your car burns gasoline with air to make heat. Where does most of this energy come from?
answer
chemical bonds of the gasoline
question
Which of the following is an exothermic reaction?
answer
concentrated hydrochloric acid dissolving in water
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Which of the following statements is true in all cases?
answer
Energy is absorbed in an endothermic reaction.
question
Energy is absorbed in an endothermic reaction.
answer
a liquid changing to a gas
question
Melting ice is an example of which of the following?
answer
endothermic reaction
